Neuronal innervation of the intestinal crypt

Am J Physiol Gastrointest Liver Physiol. 2021 Feb 1;320(2):G193-G205. doi: 10.1152/ajpgi.00239.2020. Epub 2020 Dec 9.

Abstract

Mucosal damage is a key feature of inflammatory bowel diseases (IBD) and healing of the mucosa is an endpoint of IBD treatment that is often difficult to achieve. Autonomic neurons of the parasympathetic and sympathetic nervous system may influence intestinal epithelial cell growth and modulating epithelial innervation could for that reason serve as an interesting therapeutic option to improve mucosal healing. Understanding of the biological processes triggered by nonspecific and specific epithelial adrenergic and cholinergic receptor activation is of key importance. At present, with rising technological advances, bioelectronic neuromodulation as treatment modality has gained momentum. We discuss the current view on state-of-the-art innervation of the intestinal crypt and its impact on epithelial cell growth and differentiation. Furthermore, we outline bioelectronic technology and review its relevance to wound healing processes.

Keywords: autonomic nervous system; crypt; mucosal healing; neuromodulation.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Electric Stimulation Therapy*
  • Humans
  • Inflammatory Bowel Diseases / pathology*
  • Intestinal Mucosa / injuries*
  • Intestinal Mucosa / innervation*
  • Neurons / physiology*
  • Wound Healing